The Tiger Mosquito: A Growing Threat in France

The tiger mosquito (*Aedes albopictus*) has made its presence felt in France, establishing itself in  81 departments , which accounts for  84%  of the metropolitan territory. The recent headlines focus not just on the challenges faced in metropolitan areas but also in the  French overseas territories , where cases of *chikungunya* have surged in places like  Réunion  and  Mayotte . The situation is critical, with reported cases of both dengue and chikungunya rising sharply—from a mere 30 import cases last year to over  1,000 dengue  and  900 chikungunya  cases recently documented.

Understanding the Tiger Mosquito vs. Common Mosquitoes

Unlike its common counterpart, the tiger mosquito has a unique lifecycle and behavior. This mosquito typically operates within a  150-meter radius  of its birthplace, employing dual mechanisms for survival: one to seek out human hosts by detecting  carbon dioxide  and  lactic acid , and the other to identify stagnant water—the essential breeding ground for their species.

The BG-GAT Reflect-Tech trap specifically designed for capturing tiger mosquitoes. - Biogents

Effective Strategies for Control

While traps and other measures are crucial, they are not the ultimate solution to eradicate these pests. According to  Hugo Plan , co-director of  Biogents , traps play an essential role in a larger strategy rather than being a standalone solution. He emphasizes the need for a localized approach—addressing mosquito issues garden by garden rather than setting traps indiscriminately throughout urban areas. Furthermore, municipalities can lead the way by protecting key public spaces, such as schools and parks, particularly those near stagnant water.

For instance, the city of  Toulouse  is working towards making these traps readily available to residents at preferential rates, while  Lamotte-Beuvron  has implemented traps in parks and cemeteries—places that naturally attract mosquitoes due to standing water.

Simple Actions for Individuals

Every homeowner can contribute to reducing mosquito populations by eliminating standing water sources. Remarkably, a tiger mosquito only requires the equivalent of a  single overturned bottle cap  to breed. This could include water left in plant saucers, children’s toys, or even empty watering cans, all of which serve as potential nesting sites. It is vital for residents to adopt these practices to minimize breeding opportunities.

Complementing Preventive Actions with Traps

While taking away stagnant water is essential, it is nearly impossible to achieve  100% removal . Hence, the integration of traps is imperative.  Biogents’ traps , designed to imitate the scent of human hosts, have been effectively used for common mosquitoes, and now, they have introduced the  BG-GAT Reflect-Tech  model specifically aimed at tiger mosquitoes. Priced at approximately  69 euros for two , these traps effectively enhance the overall strategy against these invaders.

Unique Features of the BG-GAT Reflect-Tech Trap

These traps target female mosquitoes that have already fed on blood and are looking for a place to lay their eggs. The trap’s reflective upper surface mimics stagnant water, attracting the mosquitoes. Once they approach to lay eggs, a mesh surface prevents them from doing so.

Setting up the trap takes only a few minutes—simply fill it with  2 liters of water , add a bit of organic material like leaves, and place a sticky trapping surface inside. Regular monitoring is required to maintain water levels and replace it monthly to avoid stagnation.

The BG-GAT Reflect-Tech trap designed for optimal placement near terraces. - Biogents

Maximizing the Effectiveness of Traps

Female mosquitoes seeking breeding grounds usually get trapped as they struggle to escape once they are attracted to the interior surfaces of the trap. The transparency prevents their exit, leading to their capture on the sticky surface. This trap focuses specifically on tiger mosquitoes, which seek  smaller amounts of standing water  compared to common mosquitoes.

Strategically Placing Traps in Your Garden

To maximize the effectiveness of traps, they should be positioned close to outdoor living spaces, like patios or terraces. Since a  satiated mosquito  is less agile, it will linger nearby, increasing the likelihood of capture.

When Should You Install Mosquito Traps?

Act quickly! Install these traps as soon as temperatures rise above  15 degrees Celsius . Female mosquitoes can lay up to  200 eggs  after a single blood meal. The goal is to eliminate the first mosquitoes before their numbers swell exponentially. Keep the traps in place long into the season: last year, mosquitoes were active until the end of  October .



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